42140871439 has 2 divisors, whose sum is σ = 42140871440. Its totient is φ = 42140871438.

The previous prime is 42140871431. The next prime is 42140871601. The reversal of 42140871439 is 93417804124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42140871439 - 2³ = 42140871431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42140871395 and 42140871404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42140871431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21070435719 + 21070435720.

It is an arithmetic number, because the mean of its divisors is an integer number (21070435720).

Almost surely, 2^42140871439 is an apocalyptic number.

42140871439 is a deficient number, since it is larger than the sum of its proper divisors (1).

42140871439 is an equidigital number, since it uses as much as digits as its factorization.

42140871439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 42140871439 in words is "forty-two billion, one hundred forty million, eight hundred seventy-one thousand, four hundred thirty-nine".